Betterment, the $10 billion robo-adviser, is to offer clients model portfolios from BlackRock and Goldman Sachs.
The firm, which has 270,000 users, is to add BlackRock Target Income Portfolio strategies and Goldman Sachs Smart Beta Portfolio strategies to its platform.
It is the first time the firm has offered investors to access to funds from any group other than Vanguard.
Betterment said the BlackRock's income-based portfolios would be for risk-averse clients looking for a steady stream of income while minimizing risk.
It said the Goldman Sachs smart beta models would be offered to clients looking for more than market cap-weighted ETFs portfolios.
The portfolios use Goldman Sachs Asset Management's ActiveBeta equity ETFs, which tilt towards stocks based on four factors: value, momentum, quality and volatility.
Betterment said the addition of these two model ranges would complement its own socially responsible investing and core portfolio strategies.
‘Adding these options to our existing portfolio strategies will help us deliver on our promise to provide customers with a personalized investment plan tailored for their individual needs and preferences,’ said Jon Stein, founder and chief executive of Betterment.
The world's biggest asset manager BlackRock had $5.7 trillion assets under management as of June 30. Goldman Sachs reported $1.4 trillion in assets under supervision for its Goldman Sachs Asset Management and Wealth Management businesses as of December 31 2016.